Wear Adjustment Device of a Disc Brake and Corresponding Disc Brake

摘要

A wear adjustment device is provided for the adjusting friction surface wear on a brake pad and a brake disc of a disc brake having a brake application device, preferably with a rotary lever. The wear adjustment device can be coupled on the drive side to the brake application device, and on the output side to a spindle unit. A respective rolling body arrangement is axially arranged on both sides of a drive element, one of which is designed as a roller bearing and one is designed as a ball ramp coupling. A central shaft is coupled to the ball ramp coupling and has an output interface for coupling to the spindle unit. A radial freewheel is coupled to the ball ramp coupling by an overload spring unit and to the central shaft. A directionally-dependent torque device is provided, along with a housing in which the drive element, the rolling body arrangements, the overload spring unit, the radial freewheel, the central shaft and the directionally-dependent torque unit are arranged.

主权项

1. A wear adjustment device for adjusting friction face wear on a brake pad and a brake disc of a disc brake having a brake application device, the wear adjustment device being coupleable on a drive side to the brake application device and on an output side to a spindle unit of the disc brake, the wear adjustment device comprising:
a drive element; in each case, one rolling body arrangement arranged axially on both sides of the drive element, of which rolling body arrangements one is configured as an anti-friction axial bearing and one is configured as a ball ramp coupling; a central shaft which is coupled to the ball ramp coupling and has an output interface for coupling to the spindle unit; a radial freewheel being coupled to the ball ramp coupling via an overload spring unit and to the central shaft; a direction-dependent torque device; and a housing, in which the drive element, the rolling body arrangements, the overload spring unit, the radial freewheel, the central shaft and the direction-dependent torque device are arranged.